振动响应传递率的动力学特性研究及其在工作模态分析中的应用

Abstract
Figure/Table
References (17)
Related Citation (5)

Download: PDF (2044 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract Vibration response transmissibility describes the relationships of responses of each position in muti-degree of freedom (MDOF) system. It has been widely used in many fields, and has achieved remarkable application especially in operation modal analysis. But, there still lacks the systematic analysis about the dynamic characteristics of vibration transmissibility. Based on the definition of vibration transmissibility, this paper analyzes the characteristics of transmissibility at zeros and poles of system, and discusses the independence of transmissibility to the system input using analytic derivation. Then, numerical cases are used to validate these characteristics. Finally, vibration transmissibility are applied to identify the modal parameters of beam structure under non-white excitations. The results showed that transmissibility based operational modal analysis method could avoid the influence of harmonic modal.

Key words： vibration transmissibility zeros and poles operational modal analysis harmonic modal

Received: 07 November 2017 Published: 28 April 2019

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	LI Xingzhan1
	2
	DONG Xingjian2
	YUE Xiaobin1
	HUANG Wen1
	PENG Zhike2

Cite this article:

LI Xingzhan1,2,DONG Xingjian2, et al. Dynamic characteristics of vibration response transmissibility and its application in operational modal analysis[J]. JOURNAL OF VIBRATION AND SHOCK, 2019, 38(9): 62-70.

URL:

http://jvs.sjtu.edu.cn/EN/ OR http://jvs.sjtu.edu.cn/EN/Y2019/V38/I9/62

[1] LAW S, LI J, DING Y. Structural response reconstruction with transmissibility concept in frequency domain [J]. Mechanical Systems and Signal Processing, 2011, 25(3): 952-968.
[2] MAIA N M, URGUEIRA A, ALMEIDA R. An Overview of the Transmissibility Concept and Its Application to Structural Damage Detection [M]. Topics in Modal Analysis I, Volume 5. Springer. 2012: 137-151.
[3] WEIJTJENS W, DE SITTER G, DEVRIENDT C, et al. Transmissibility based operational modal analysis: on the use of the pseudo inverse approach[C]//Proceedings of the ISMA, 2012.
[4] URGUEIRA A P, ALMEIDA R A, MAIA N M. On the use of the transmissibility concept for the evaluation of frequency response functions [J]. Mechanical Systems and Signal Processing, 2011, 25(3): 940-951.
[5] LAGE Y, MAIA N, NEVES M, et al. Force identification using the concept of displacement transmissibility [J]. Journal of Sound and Vibration, 2013, 332(7): 1674-1686.
[6] GUASCH O, GARC A C, JOV J, et al. Experimental validation of the direct transmissibility approach to classical transfer path analysis on a mechanical setup [J]. Mechanical Systems and Signal Processing, 2013, 37(1): 353-369.
[7] DEVRIENDT C, GUILLAUME P. The use of transmissibility measurements in output-only modal analysis [J]. Mechanical Systems and Signal Processing, 2007, 21(7): 2689-2696.
[8] DEVRIENDT C, GUILLAUME P. Identification of modal parameters from transmissibility measurements [J]. Journal of Sound and Vibration, 2008, 314(1): 343-356.
[9] DEVRIENDT C, DE SITTER G, GUILLAUME P. An operational modal analysis approach based on parametrically identified multivariable transmissibilities [J]. Mechanical Systems and Signal Processing, 2010, 24(5): 1250-1259.
[10] DEVRIENDT C, WEIJTJENS W, DE SITTER G, et al. Combining multiple single-reference transmissibility functions in a unique matrix formulation for operational modal analysis [J]. Mechanical Systems and Signal Processing, 2013, 40(1): 278-287.
[11] WEIJTJENS W, DE SITTER G, DEVRIENDT C, et al. Operational modal parameter estimation of MIMO systems using transmissibility functions [J]. Automatica, 2014, 50(2): 559-564.
[12] WEIJTJENS W, DE SITTER G, DEVRIENDT C, et al. Operational Modal Analysis Based on Multivariable Transmissibility Functions: Revisited [M]. Topics in Dynamics of Civil Structures, Volume 4. Springer. 2013: 317-326.
[13] 周思达, 刘莉, 杨武,等. 基于响应传递率的非白随机激励仅输出结构模态参数辨识[J]. 振动与冲击, 2014, 33(23): 47-52.
ZHOU Si-da, LIU Li, YANG Wu, et al. Output-only structural modal parameter estimation under no-white excitations based on response transmissibility [J]. Journal of Vibration and Shock, 2014, 33(23): 47-52.
[14] 张永年, 王彤, 夏遵平. 基于传递率函数的运行模态分析方法[J]. 振动、测试与诊断, 2015, 35(5): 945-949.
ZHANG Yong-nian, WANG Tong, XIA Zun-ping. Operational Modal analysis based on transmissibility function [J]. Journal of Vibration measurement & Diagnosis, 2015, 35(5): 945-949.
[15] Lage Y E, Neves M M, Maia N M M, et al. Force transmissibility versus displacement transmissibility [J]. Journal of Sound & Vibration, 2014, 333(22): 5708-5722.
[16] 张昱, 朱彤, 周晶. 多自由度系统中标量传递率的不变性及其应用[J]. 振动与冲击, 2015, 34(8): 151-156.
ZHANG Yu，ZHU Tong，ZHOU Jing. Invariability of scalar transmissibility in a MDOF system and its application [J]. Journal of Vibration and Shock, 2015, 34(8): 151-156.
[17] 张义民, 张守元, 李鹤, 等. 运行模态分析中谐波模态识别方法研究及应用[J]. 振动、测试与诊断, 2008, 28(3):197-200.
Zhang Yi-min, Zhang Shou-yuan, Li He, et al. Harmonic mode identification in the operational modal analysis and its application [J]. Journal of Vibration, Measurement & Diagnosis, 2008, 28(3): 197-200.